Dynamic fracture instability in glassy polymers as studied by ultrasonic fractography
β Scribed by K. Takahashi
- Publisher
- Society for Plastic Engineers
- Year
- 1987
- Tongue
- English
- Weight
- 941 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0032-3888
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π SIMILAR VOLUMES
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H NMR spectra of hexamethylbenzene (HMB) in proionated crystalline and amorphous matrices at low temperatures are presented. All spectra reveal lineshape changes which can be attributed to methyl group tunnelling. Compared to neat HMB, a drastic increase of the tunnelling frequency is found for all
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